Summary: So this is a review of two halves. The Sonos kit is great 5 stars - the original service from AMP3 great.
The follow up service dreadful.I did not get my free head phones as promised in the first order(I ordered three systems). Then spent the best part of three weeks trying to get an answer by email from them, no responses to 3 emails. Now - via an order update - that something has been sent.